/*Thiết kế nút submit*/
div.button_submit span{
    float: left;
    display: block;
    cursor: pointer;
    height: 27px;
    line-height: 27px;
}
span.left_img, span.right_img, input.button{
    margin-top: 10px;
}
span.left_img{
    background: url(../images/left_button.png) no-repeat;
    height: 27px;
    margin-left: 2px;
}
span.right_img{
    background: url(../images/right_button.png) no-repeat;
    height: 27px;
}
div.button_submit span.text input{
    border: 0;
    background: url(../images/button_bg.png) repeat-x;
    height: 27px;
    font-weight: bold;
    color: #F5F5F5;
    padding: 0 5px;
    cursor: pointer;
    margin-top: 10px;
}
div.button_submit:hover, div.button_submit span.text input:hover{
    color: #FFF;
}

/*Thiết kế nút bình thường*/
div.button span{
    float: left;
    display: block;
    cursor: pointer;
}
div.button span.text{
    background: url(../images/button_bg.png) repeat-x;
    height: 27px;
    line-height: 27px;
    font-weight: bold;
    color: #F5F5F5;
    padding: 0 5px;
    cursor: pointer;
}
div.button:hover, div.button span.text:hover{
    color: #FFF;
}